Global Patent Index - EP 0250408 A4

EP 0250408 A4 19880623 - DYNAMICALLY LOADING SOLID MATERIALS OR POWDERS OF SOLID MATERIALS.

Title (en)

DYNAMICALLY LOADING SOLID MATERIALS OR POWDERS OF SOLID MATERIALS.

Title (de)

DYNAMISCHES LADEN FESTER MATERIALIEN ODER PULVERN VON FESTSTOFFEN.

Title (fr)

CHARGEMENT DYNAMIQUE DE MATERIAUX SOLIDES OU DE POUDRES DE MATERIAUX SOLIDES.

Publication

EP 0250408 A4 19880623 (EN)

Application

EP 86901313 A 19860304

Priority

AU PG955785 A 19850304

Abstract (en)

[origin: WO8605131A1] Solid materials are dynamically loaded by impact with a piston (10) fired at the material (11) in a suitable support (12) wherein a ''punch'', which is a body (22) of material introducing a shock wave impedance mismatch, is inserted between the piston (10) and the material (11). The preferred embodiment relates to a gas fired piston which is propelled onto a powder constrained in a die and uses a steel punch. The punch provides a highly reflective surface for stress waves in the powder and modifies the pressure-time history of the initial shock wave propagating in the powder.

IPC 1-7

B22F 3/02; B01J 3/08

IPC 8 full level

B01J 3/08 (2006.01); B22F 3/08 (2006.01); B29C 43/02 (2006.01); B29C 43/32 (2006.01); B30B 11/02 (2006.01)

CPC (source: EP US)

B30B 11/027 (2013.01 - EP US); B22F 2998/00 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE FR IT LI NL SE

DOCDB simple family (publication)

WO 8605131 A1 19860912; CA 1244213 A 19881108; EP 0250408 A1 19880107; EP 0250408 A4 19880623; GB 2193148 A 19880203; GB 8720635 D0 19871007; JP S62502973 A 19871126; NZ 215360 A 19880530; US 4770849 A 19880913

DOCDB simple family (application)

AU 8600050 W 19860304; CA 503259 A 19860304; EP 86901313 A 19860304; GB 8720635 A 19860304; JP 50150286 A 19860304; NZ 21536086 A 19860304; US 93455786 A 19861022